Ceiling fan



FIG. 1 is a perspective view;

FIG. 2 is a perspective view;

FIG. 3 is a top view;

FIG. 4 is a bottom view;

FIG. 5 is a front view;

FIG. 6 is a back view;

FIG. 7 is a side view; and,

FIG. 8 is a side view.

The broken-line disclosure represents portions of the ceiling fan in which the claimed design is embodied, but which form no part of the claimed design. 

CLAIM The ornamental design for a ceiling fan, as shown and described. 